DE2062926A1 - Articulated vehicle frame - Google Patents

Description

206292Θ

DR. ING. E. HOFFMANN · BtPL ING. w.. £ 11X15 · DK. RER. NAT. K. HOFFMANN

PATENT LAWYERS

D-8000 MÖNCHEN 81ARABELIASTRASSE 4 TELEPHONE (0811) 911087

Aktiebolaget Volvo, Gothenburg / Sweden

Articulated vehicle frame

The invention relates to an articulated vehicle

tool frames, especially for off-road vehicles, with a hinge arrangement arranged between the front and rear axles and dividing the frame into two parts.

For off-road vehicles, the use of a frame is desirable, which allows large torsional

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2062928

can absorb movements, creating larger yielding Movements and thereby an increased penetration ability can be achieved. When driving off-road with conventionally built vehicles with a one-piece frame, which on front and rear Rags are arranged within dea The frame creates twisting movements · The frame is thereby Subject to high stresses, which also affect the attachments of the body or the driver's cab how to act on the load-bearing superstructure. This can cause severe damage and the driving characteristics of the vehicle are also impaired.

To achieve better off-road mobility in vehicles, it is known to attach a rotating plate to the frame between the front and rear axles in order to divide the frame into two parts, which are rotatable relative to one another around the longitudinal axis of the vehicle. So that a turntable, which is arranged in this way, can withstand the extremely large bending stresses to which it is subjected, karni _? it must have a large diameter, which affects the tree above and below the frame and thus reduces the ground clearance and the available load space

One object of the invention is a vehicle frame with a gel @ nk arrangement herzestellea, weleh © the sum öeländefehren necessary twisting movement-im Frame allows while maintaining the strength of the Batessts In vertical and side view uprssM © rMlt aai

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the disadvantages mentioned above Yenneidet.

This aim is achieved according to the invention in that the joint arrangement has an all-round joint which is arranged in the vertical longitudinal plane of symmetry of the frame and connects the two frames to one another, and that two links are arranged on both sides of the all-round joint in the longitudinal direction of the frame which are hinged to the g frame parts in a plane below a horizontal plane through the all-round joint

A preferred embodiment of the invention is described below with reference to the drawing described. Show Bs »

Fig. 1 is a schematic side view of an all-terrain vehicle Truck with a split frame and an articulated arrangement according to the invention,

Pig. Fig. 2 is a side view of part of the hinge assembly, Ä

Fig. 3 is a top view of the hinge assembly, and

FIG. 4 is a schematic view of the frame parts in FIG a position that is rotated relative to one another from the rear.

The vehicle shown in FIG. 1 is an all-terrain four-wheel drive truck, although the Invention is not limited to vehicles of this type.

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The front wheels 1 of the vehicle carry a resiliently suspended frame part 2 on which a motor 3 with a transmission 4 and other accessories as well as a driver's cab 5 are arranged.

The rear wheels 6 similarly carry a frame part 7 on which a loading area 8 is arranged is. The front and rear wheels are driven by the transmission 4 via cardan shafts 9 and 1o. In In other applications, only one pair of wheels needs to be driven.

The frame parts 2 and 7 are connected to one another by a joint arrangement, which consists of an all-round Joint 11, in the illustrated case a ball joint, which is in the vertical longitudinal plane of symmetry the frame parts 2 and 7 is arranged and arranged on both sides of the joint 11 on all sides in the form of rigid tension members 12 which articulately connect the two frame parts in the longitudinal direction and are arranged in a plane below the all-round joint 11 and symmetrically to the same. the Tension link fastenings must have a rotation in the vertical plane and also a certain amount in allow the horizontal plane and are preferably ball joints. Because the fastenings 13, H in a horizontal plane below the all-round joint 11 are arranged and together with this form a double three-dimensional three-point suspension, all forces caused by vertical loads on the frame occur in the form of compressive forces on all sides Joint and in the form of tensile forces in the tension members on"

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When the frame parts 2, 7 are rotated relative to one another, the horizontal distance between the. Fastenings 13 »H of the pull links It are reduced and the frame parts 2 and 7 are slightly inclined so that the adjacent ends of the frame parts 2 and 7 are slightly raised in relation to the ends of the front and rear wheels. Because the load resting on the frame tends to "push the joint arrangement downwards, the latter tends to" lh " ä

re normal position in the toe * d * h there is a persistence ** * It is important to know what point of view Inclination around the transverse axis is important

With a joint arrangement according to the invention Ikinnen MIä iel & ^ d-e experience all torsional forces «, whatever den & 6hn »a. would influence, duröh

In the fora of strength and shear forces received in «E wt # 4en. The joint arrangement enables large angles of rotation between the front and rear axles and this easy-to-use cross-country driving. However, the rotation must be limited within a certain angle and therefore the joint arrangement with f

provided a stop. This can be made from a wire

15 consist »its length e.g. by means of a turnbuckle

16 einstellbejf is »The wire extends through Eohre 17 »which on the two girders of the frame part 7 are arranged and by sleeves 18 on the carriers of the frame part 2. The sleeves 18 are normally located the ends of the corresponding tubes 17 opposite. away a stop button 19 is arranged at each end of the wire 15 and the sleeves 18 carry corresponding stops. If the frame parts 2, 7 are twisted against each other, the distance between the ends of the

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Tube 17 and the sleeve a 18, and the announcement buttons thus come closer to the sleeves 18 until they move from the stops to the Sleeves 18 are stopped and further rotation is prevented. Because the wire 15 is in the tubes 17 is movable, the load on the sleeves 18 and the stop buttons 19 is on both ends of the wire 15 the same, so that the load on both sides ten of the frame parts is the same "

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Claims (5)

206292G Claims C 1.) Articulated vehicle frame, in particular for all-terrain vehicles, with an articulated arrangement arranged between the front and rear axles and dividing the frame into two parts indicates that the joint arrangement has an all-round joint (H), which in the vertical longitudinal plane of symmetry of the frame is arranged and the two Raheenteile (2, 7) connects with each other, and that swei members (12) on both sides of the all-round joint (11) are arranged in the longitudinal direction of the frame, which on the frame parts (2, 7) are articulated in a plane below a horizontal plane through the all-round joint (11). 2. The vehicle frame according to claim 1, characterized in that the connection points of the links (12) with the frame parts (2, 7) symme- f trically arranged relative to the joint (11) on all sides are· 3. The vehicle frame according to claim 1, characterized in that the connections of the all-round joint (11) and the links (12) are all ball joints 4. Vehicle frame according to claim 1, characterized in that a Ansohlageltment, ■ · 3 ·· 1 & 982Ö / 12QQ (15 »18, 19) to limit the maximum rotary movement the handle parts (2, 7) are provided relative to one another is. 5. Vehicle frame according to claim 4 »characterized in that the stop element has a wire (15) which is freely displaceable arranged in guides (17) on the frame part (7) and the ends of which are provided with stop buttons (19) are, which with Anechlägen (18) on the other frame part (2) on both sides of the all-round joint (11) are haltable. 109830/1200